Adding and listing machine.



Patented June 29, 1909.

13 SHEETS-SHEET 1.

r l H I LHH l l L. s. ORANDALL.

ADDING AND LISTING MAGHINE.

APPLICATION IILED NOV. 11, 1908.

Patented. June 29, 1909.

1a SHEETS-SHEET 2.

E S nocwi or mdmtoznei s v wwimepcp Patented June 29, 190-9:

' 1a SHEETS-SHEET a.

LI. S. URANDALL.

ADDING AND LISTING MACHINE. APPLICATION FILED NOV. 11, 1,908.

5] MG M06 WYQQ Q. 9. sways L. S. ORANDALL.

ADDING AND LISTING MACHINE.

9. APPLICATION FILED NOV. 11, 190B. Patented "June 29,

13 SHEETS-SHEET 4.

w lzz imifiwl 6 5 UISEIEEL E L.

Lfs. GRANDALL. ADDING AND LISTING MACHINE.-

9. APPYLIUATION FILED NOV. 11, 1908. Patented June 29, 1909 13 SHEETSSHEET 5.

I woe n to a al fo'zuu 6 ma www- L. S. CRANDALL. ADDING AND LISTING MAGHINE.

' APPLICATION FILED NOV. ll, 1908. I 926,31 9. Patented June 29, 1909.

18 SHEETS-SHEET 6.

L IH L W 27 20 f v Q) x 4 t'@ Q m newton 1;} :4 attozmmg S W W L. S..GRANDALL. ADDING AND LISTING MACHINE. APPLICATION FILED NOV. 11, 1908.

, 926,31 9, Patented June 29, 1909.

13 SHEETS-SHEET 7.

mr m mum mum mm mum HI I I I I L. S. GRANDALL.

ADDING AND LISTING MACHINE? APPLICATION FILED NOV.11,1908.

Patented June 29, 1909.

13 SHEETS-SHEET 8.

IIIXTII' L. s. GRANDALL.

ADDING AND LISTING MACHINE. APPLICATION FI LED NOV.11 1908.

Patented June 29, 1909.

13 SHEETS-SHEET 9.

Inmm mm .mm

{9 F lj F'c ""r'p-"r 1 Minn/m wimeaoao: I

L. S. GRANDALL.

.ADDING AND LISTING MACHINE.

APPLICATION FILED NOV. 11, 1908 Patented June 29, 1909.

13 SHEETS-SHEET 10.

L. S. GRANDALL.

ADDING AND LISTING MACHINE.

APPLICATION FILED NOV. 11, 1908.

926,31 9. Patented June 29, 1909.

18 SHBETSSHEET ll.

- b vvue mrtoz I ij flffjmmga W W L. S. CRANDALL. ADDING AND LISTING MACHINE. 'APPLIOATION FILED NOV. 11, 1908.

Patented June 29, 1-909.

& R.

L. S. CRANDALL' ADDING AND LISTING MACHINE.

APPLICATION FILE-D NOV.11,1908.

Etented June 29, 1909.

13 SHEETS SHEE'T 13.

ammo-1M0 S 4,?

- wamwm T all whom it may concern: E

away, in 'orderlto more showing the printing type faces. rear view thereof showing the reading tv partdf the machine in .ing the means for position.

UNITED STA FESL PATENT OFFICE.

ifiUOIEN S. 'ORANDALL, OF WASHINGTON, NEW JERSEY, ASSIGNOR T0 BENJAMIN F.

OF NEW YORK, N. Y.

ADDING AND LISTING MACHINE.

Be it known that I, LUOIEN SQCRANDALL, a citizen of the United Statea'and resident of WVashington, in the county of Warren and State of New Jersey, have invented certain: new and useful Improvements in Addingand Listing Mach ines, of which the followingis a clear and full specification, the novel features being more clearly ointed out in the accompanying claims an illustrated in the ac'comi panying drawings. I My invention relates in general to machines 3 of the type in which the items are added and 5 are printed in a column at the same time.

In particular my invention relates to an; adding machine in which a compound type? bar is employed, the particular features of: which are described and claimed in a 00,-, pending ap' lication. j I have i ustrated my novel adding machine in the accompanying drawings in, Which Figure 1 is a plan view of the whole ma-T chine. Fig. 2 is aright end elevation of Fig. 1., in ii hich the end plate of the machine has; been removed; Fig. 3is a side elevation showing the lower part of the side Wallbroken clearly lustrate the Y osition of the keys and their 0 crating cams. ig. 4 is a detail side view in en arged scale of my novel type bar. Fig. 5 is the same view showing the type bar in shifted position ready to present the type selected to the platen. Fig. 6 is a front vievr of the bar Fig. 7 is a;

faces. Fig. 8 is a portion of'oneof the t e-0 members of the bar. Fig. 9 IS a perspective;

view of portions of the two bar -menibers,.

showing the manner in which theyinterlock with each other. Fig.10 is a transverse see tion of a portion of the lower part of the ma; chine showing the shafts controlled by the keys for operating the cams -which lift the type bar operating levers. Fig. 11 is a plan view of a ortion of the mechanism shoivninf Fig. 10. ig. 12 is a detail view of one of the journal plates. Fig. 13 is a detailview of a side elevation showing the control of the cams by the key bars for lifting the type bar levers. Fig. 14 is a detail side elevation of a part of the machine showcontrolling the type bars and for'resetting the type bars into normal Fig. 15 is a side elevation of apart thereof.

x x in Fig. 21 seen in mechanism in the pea 4- to 9 inclusive.

types are provided .two members,

Patented June 29, 1909. Serial No. 462,107.

: of the machine showing a portion of the printing elements and of elements co'operating therewith. Fig, 16 is a side elevation of a 5 part of-the machine showing the operation of the printing hammer, vation thereofpartially' in section. is 'aleft hand view oftherighthandpiVot joint 40,. 41 in Fig.- 17. Figs. 18'and'19' are side elevations showing the carry-bar before and after 0 eration.

21 is a plan vie'w of the adding Wheelsand a part oft-heir operatingmechanism. Fig. 22 isf-a' sectional elevation on line the directionof the is a detail perspective view Fig. 17 is an end elearrow; Fig. 23

of one of the carry dogs forreleasing; the

carry-bars. Figs. 24 and 25 are vertical sections of the zero-return mechanism for the adding wheels in normal and in operative position. Figs. 26

ig part thereof,

thereof. Y p

I will describe the various functions of the following sequence: (1) the type bar, (2) the position movement, (3)

the impression movement, (4) additional function of the type bar, (5) the adding Wheels, (6) the zero-return mechanism for the adding-Wheels,'(7) the reset lever, (8) the platen movement, (9);the type bar restraining bail, and-(1Q) thelisting out off.

he type bar is illustrated in detail in Figs.

my novel type bar, on which a plurality of Sothat by either shifting the bar or the platen each type may be selectively-brought in front of the platen into operative position, spaces between two types, which heretofore in machines using thatkind of type constituted Wasted space, are utilized by placing type of the adjoining bar-member into these spaces.

each member. carrying ty es fitted into the interstices of the other memlier and by movably joining these two members together, the effect is obtained that when, by

Fig. 17

. g. 2.01M plan v w" to 30 inclusive are detail parts of this mechanism.- Fig. 31 is a lan a .view of the type-bar-reset'mechanism.

32 isa-righthand elevation of a .and Fig. '33 is a left hand elevation of a part The particular feature of is that the intermediate .100 Byforming the type bar of suitable means, the types ofone member are Withdrawn within the interstitial type spaces of the other member, the other member is ready to present any of its types selected'to the plaster: Without theadjoining types ofthe other member interfering with the printing -'is pivoted at 3 to the lever mechanism of the machine to be described later on, so that it may be shifted by this mechanism upward in the direction longitudinally of the bar. 2 is the cooperating member of the bar pivoted at 4 to member 1. plurality of types 5 with asuitable space between them to allow the types 6 of member 2 to evenly fit into these spaces. The thickness of each member is, as may be seen from Fig. 6, approximately one'half the width of its types and the types of each member are overlapping the other member, so that thus an interlocking compound bar is formed as may be clearly seen from Figs. 8 and9 in which the details and relative positions of the members are illustrated. By proportioning the two members relatively to each other in this manner, it will be seen from Fig. 6, that a vertical row of types is thus produced with only space enough between the two adjoining types to allow relative motion of the two members, and that the shifting of the bar in longitudinal direction in order to present any of the types selected to the printing point of platen 11, is'very small compared with the large-number of types provided on the bar.

In order to avoid the moving of both members, if a type of-one of them is brought into printing position, and thus to avoid the in-- terference of thetypes adjoining the one in operation, Iprovide the following means: The edges of the bar members 1 and 2, facing in the directim 'of their .types 5 and 6, are formed as ratchet bars a certain portion of their length, the teeth of each of the members being positioned relatively to the teeth of the other member, so that the tooth of: one member will register with the recess formed by the two teeth of the other member, as shown at 7 and 8 in Fig. 4. If now the compound bar should be shifted upward longitudinally, as willbe described in detail later on, so that for instance the tooth 7 should be opposite to pawl 9, the detail structure of which will be described later on, and so that one of the left hand side extensions of member 2 should be opposite to hammer 10, which will be also referred to in detail. later on, it will be seen that bar member 1 will be retained by pawl 9 relatively to its'member-2, as indicated in Fig. 5, when hammer 10 moves in the direction of the arrow toward the printing point 11. By this means, one of the types 6 of member 2 which has been selected by raisingthe bar to the height indicated in Figs. 4 and 5, will be brou t to the priming oint and ty es 5 of member 1 will recede in t e interstitia spaces of types 6.

It may be poimzed out, as a preliminary Member 1 bears a.

ber.

explanation, that pawl 9, only the operative end of which is shown in Figs. 4 and 5, is fixed relatively to the shifting direction of the bar and has motion only transverse thereto. Hammer 10, the operative end of which is shown in Figs. *1 and 5, is also fixed relatively to the longitudinal motion of the bar and has movement only transverse thereto. Interstitial spaces are also provided on the left hand side of each member of the bar, correspending with the interstitial spaces on the right hand side, on which the types are provided. In these spaces of each member are disposed portions of the other'member corresponding in their shape with the corresponding type at the other side of this mem- I have indicated these" portions in- Figs. 49-with numerals 13 and 14. From the position of member'Q, shown in Fig. 5, it will be seen that the types 6 carried by this member have now sufficient space between each other, so that the types 5 on either side of the types 6 at the time in printing position, will not interfere with the printing of this type. In order to facilitate the writing for the operator, that is to enable him to see which type is at the time in printing position, the projections 13 and 14 of members 1 and 2, above referred to, against which hammer 10 operates, and which correspond with the types in number and position and which are faced by the operator, are provided with reading or item-proof types of corresponding designation. These reading types are shown in Fig. 7 at 13 and '14. Since hammer 10 operates against these portions of-the two bar members, I prefer to have the reading types intaglio, while the printing types on the right hand side of the two bar members are preferably cameo, as commonly used in typewriting or similar machines. Fig. 6, illustrating portions of the two members 1 and 2 drawn apart, clearly shows how the type of member 2, representing numeral 1, iits into the interstitial space formed by the types representing numerals O and 2 carried by member 1, and Fig. 9 also clearly illustrates the form of the two members and the form of the types to permit the shifting of the two members relatively to each other as illustrated inl ig. 5. This compound bar is disposed in the adding machineof the kind above referred to which I will now describe in detail as follows with reference to the several functions of the machine.

, Position m0eement. The machine as illustrated in Figs. 1, 2 and 3 comprises'a rectangular casing 15 with a top plate 16 on which the outside mechanism of the machine is mounted. The casing is longitudinally dipartments farmed outside of these Walls,

which latter .are of equal width and are hereinafter called outer compartments. In the top plate are guided the key bars 19 in slots of suitable size.

is divided into a number of transverse sections 20, each of which is provided at one edge with slots 21 of suitable size to receive the key bar 19, sections 20 corresponding in number with the number of transverse rows contained in the key board. Starting from' the bottom row of the key board in Fig. 1,

sent the different denominations each following section closes the slots of the previous section, so that the bars 19 are guided on all four sides.

The key board, as shown in Fig. 1, is arranged so that,.counting from the right to the left, the vertical columns of keys repreof the numbers to be added and printed, in this particutively corresponding lar case the denominations from the units to the tens of millions, orconsidering-the last two right-hand columns as cent denominations, the machine will indicate up to the hundred thousands read from the top to the bottom contains keys denoting numerals from 0-9 which may be written in the denominations represented by that column. Therefore each transverse row of keys indicates the same numeral in different denominations. Between the two outer longitudinal walls of each buter compartment are disposed key-bar shafts 22 each of which is j'ournaled in these walls, as indicated in Figs. 10to 12, by means of journal plates 23 provided with recesses 24 in which the neck of the shaft is dis osed. In order to conveniently assemble tllese shafts, suitable holes are provided in side )lates 15 of the casing in which one end of t e shafts is journaled, while. the other end journaled with its neck in journal plate 23, of which as many are fastened to walls 17 and 18 as there are transverse rows on the key board. Each following journal plate .23

closes the recesses 21 of the )revious plate, forming the ournal of one s aft. Journal plates 23 may be fastened to plates 17 and 18 respectively by screws 26. The number of shafts corresponds with the number of keys on the key board and their arrangement in the machine is such that four shafts are disposed in one journal plate 23 one above another, which corresponds with one half of the number of keys in one transverse row. These four shafts are located in one outer compartment. The other four shafts in a vertical row, belonging to the other half of the number of keys in that row, are correspondingly located in the other outer compartment. Ten vertical rows of shafts are disposed in each outer compartment between the walls 15 and 17 and 15 and 1S respec- \\'ith the number of transverse rows on the key board. Each .vertlcahrow of shafts is provided, between F or this purpose plate 16 of dollars. Each column' of shafts 22 iswalls 15 and 17 and 15 and 18 respectively, with an arm27 to the free end of each of which a key bar'20 is pivoted, so that if the 1 key of this bar is operated this shaft will be rocked by this arm 27. For each arm 27 a tension spring 28 is provided, fastened at one I end to this arm and at the other end to a I fixed point near the top plate 16 at a suitable place inside of the casing as indicated in Fig. l'13,-so that by these springs each of the keys will be held in their lifted normal position, as for instance indicated. in Figs. 3, 13, 14 and 16.

A stop 29 provided on each key bar 19 abuts against the under side of top plate 16 to limit the upward movement of thekey bar. From Fig. 10 it will be noted that the shafts 22 of each vertical group are of different lengths, so that their inner ends protrude a different distance into the inner compartment. The lowest shafts protrude the farthest and the uppermost protrude the least distance. Vfithin the inner compartment is disposed a group of key bar levers 30 which extend substantially throughout the whole length of this compartment and which are suitably pivoted at the left hand end (Fig. 3) at 31, so that they form a group of levers staggered in V-shape, as may be seen from Fig. 10. At the inner ends of shafts 22 protruding into the space containing levers 30 are fastened cams 32, and the levers 30 are arranged so that each lever will rest upon all the cams of a longitudinal row of shafts pro-- truding an equal distance into the compartment, as is for instance indicated in Fig. 3, in which the lowest of the levers 30 isshown resting upon all the cams 32, shown in this figure in one longitudinal row. Furthermore the cams 32 which belong to one longitudinal row, in other words to one column of keys such as is for instance indicated in Fig. 3, increase in their height the nearer they are located to the pivot point 31 of levers 30, as may be seen from this figure. However the cams ofone vertical row of shafts, that is, shafts operated by one transverse row of keys, are of equal height. If now, one of the keys of this column. in Fig. 3 is operated it will be seen that the lever resting upon the cams will be lifted by the cam, the key of which has been operated. This is for instance indicated in dotted lines in Fig. 14 in which only the upper end of the cam is I shown in the dotted lines. It will be also noted with regard to the previous explanm tions that the key of one column nearest to the pivot point of levers 30 will lift this lever the highest, while the key farthest from these pivot points will lift the levers the least.

will lift their cooperating lever the same i height.

4 Each of the cams 32 is double the width of the lever which itoperates. as may be seen I Furthermore the cams in. each vertical row from Fig. 10, and each cam is provided with a nose 33, which is only one half tne width of thecam, so that when this cam lifts its lever, the nose will glide alongside the lever, is for instance shown in Figs. 11 and 1 1. For each nose a pin 34 is provided on lever 30, which, when the cam with its nose is turned up to lift the lever will be engaged by the nose so that the lever will beprevented from rising beyond thedesired point by its own momentum, in case the key'has been struck too hard. all levers being of equal length, is now pivoted, by means of ivot pin 3, the com ound type bar 36 comprising the two members 1 and 2 of the character described above. This manner of pivoting is shown clearly in detail in Fig. 14. Each compound bar vertically guided in a slot rovided in guide block 35, which is mounted vertically at the end of the machine and fastened between walls 17 and 13 so that all the compound bars 36 will protrude with their type bearing end' above top plate 16 and form a transverse row of bars in these slots which are open toward platen 11, as indicated in Figs. 1 and 2. If new one of the keys is operated the type connected with the key in the manner above described will be raised by the lever the higher, the nearer the key is located to the pivot point of the lever 30 to which bar 36 is pivoted. The cams 32 operating each lever are in practice dimensioned so that each key of one column will lift the type bar 36, belong in to this column, to a differently suitab e height, so that for each key in this column a certain type of this bar is brought in line with the printing point of platen 11. In the guide slots of block 35 are further disposed a corresponding number of pawls 9 on a C0111- mon pivot 39 as indicated in Fig. 14, so that each type bar 36 will have a corresponding pawl 9. The

against both members of the compound bar opposite to which it is located, as may be. seen from Fig. 2. Each pawl 9 is held in engagement with its bar by means of a spring 38 fastened at the other end to a rod 37 disposed between walls 17 and 18, Figs. 2 and 14, and bears, when the ty e bar is in the lowest, normal position, Wit 1 all the keys at rest, against the straight edge above teeth 7 and 8 of bar members 1 and 2. If new the bar is lifted by one of its keys to present the type desired to the printing point of platen 11, awl' 9 will act upon the two members of the ar as described above, where the structure of the compound bar was ex lained, so that the member of the bar whic "contains the desired type will be free to be moved toward the platen, while the other member of the car will be retained by pawl 9. Bar 36 is new in the proper position to make the desired ty; impression on the platen. The

T o the free end of each lever 3O,

osition of these pawls rela-" trvely to these are is so that each pawl bears 3 mechanism for causing the bar to strike the platen is as follows:

, Impression movement, (Figs. 1, 2, 3, 15, 16 and 17.)The hammer 10 for causing the desired member of the compound .bar to strike the platen has the form of a bail which is pivoted to two lugs 10 provided on topplate 16 near either side of guide block 35, (Fig. 17). Each lug 40 has a boss -11. which serves as a pivot for hammer 10. The left I hand shank of the hammer extends down-, ward and forms a toothed sector 42 which is in mesh with a toothed sector 43 fastened to a rocking shaft 44 mounted between side plate 15 and inner wall 17 of the casing, Figs. "517. To the other end of shaft 44, near sidewall 15, is fastened a disk 15 provided witha notch 16 in which engages a dog 47 pivoted to side wall 15 at 48' 130g 47 is held in engagement with the surface of disk 45 by spring 19 fastened at one end to dog -17 and at the other end tothecasing at a suit able place. On shaft 44 is provided a strong torsion spring 50, Fig. 17, one end of which bears against pin 51 fastened to Wall 17 and the other end of which is fastened to the hub of disk 45, the torsion of this spring bein in such a direction that disk 45, and toothed sector 43, Fig. 15, will be turned to the left and thus nammer 16 to the right, so that the. latter will strike the compound bar or barsin its path, and cause it or them to strike the platen. Such a position of the bar is for instance shown in Fig. 14 iii dotted lines and in Figv 5 in full lines.

hen hammer 10 is withdrawn into its normal position shown in'Figs. 15 and 16, disk 15 turns to the right, so that dog 17 hearing by spring pressure upon the surface of disk -15, will be forced to engage in notch 16 and thus retain disk 45 and hammer 10 in its normal position with torsion spring 50 under tension. To the free end of dog 17, protruding beyond 'its pivot point 48, is pivoted a link 52 which is pivoted at the other end to a swinging arm 53 pivoted at 54 near the ivot points 31 of key bar levers 30 to the left hand side wall 15 of the casing, as may be seen from Figs. 3, 16 and 17; This link 52 with its swinging arm 53 .and dog 47 forms a parallel link s stem. For each of shafts '22 operated by the farthest right hand column 0 keys in Fig. 1, of which three are indicated in Fig. 16, a pin 55 is provided on link 52 in a suitable position to be engaged by noses 56 which are -provided on each of these shafts near the wall of the outer compartment as illustrated in Fig. v16 in side view and in Fig. 17 in front view. Thus it will be seen thatif any of the keys in this column is operated and its corresponding shaft 22 rocked, nose 56 connected to this shaft will throw link 52 to the right, by abutting against pin 55, into v represented by the type in printing in order to show guide block i therewith, its lever 30 that the release of brought in after refer only which will in turn cause dog 47 to release cam and. thus enable spring 50 to throw hammer 10 against the type bar as described above. From the above it will be-alson'oted,

being caused only by pressing one of the keys in this first right hand column of the key board, which I hereinafter will call the unit keys, the numbers in all the other denominations which might occur in an, temmust be positioned firstso that operated, all other characters of the item to be written are in place. Therefore the operator should always start in Writing with the highest denomination. The resetting of the printing hammer into its normal position, shown-in Fig. 15, will be described later .on with reference to the resetlever. A knob 57 may be provided at one side of the hammer- 10, as shown in Fig. '17, for retaining hammer 10 in its normal positionin case the operator should desire to strike one 'of the unit keys without operating the hammer.

Additional functions offhe type bar.-When by operating any of the'keys of the key board any of the severaltypebars 36 inone trans verse row is operated in the manner described above, and a certaintype of the barcorresponding with the desired numeral has been front of the platen, it is necessary that for each bar the corresponding adding wheel should be advanced to the proper tooth or step corresponding with the figure position, to the operator the addition of their figure to the sum of the items previously printed. The general principle of the structure of such adding or total wheels being known in the art, I shall hereinto the particular novel fea tureswhich are .embodied "in these wheels used in my machine. These wheels are illustrated in Figs. 14 and 21. The adding wheels 60, corresponding in number with the number of type bars with these bars in the rear wall ofgui'de block facing the operator and are disposed loosely on a common shaft 61, in a manner which will hedescribed later.

out it issuliicient to state that these adding wheels protrudethrough the rear wall of 35, which for this purpose is cut out in the manner indicated in Fig. 14, and that each wheel is separated from the adjoining wheel by a partition62 forming part of block The edge of member 2.0f each compound bar 36 facing the adding wheels is provided with teeth 63corres' onding in number with the teeth-64 of the a ding wheel am] of proper size and shape .to cooperate to the height desired, the adding wheel 60 revolved a'corresponding number of teeth. In the present machine, the typesare so ar- 1 character the printing hammer 10 i when the unit key is figures or 36, are disposed in line Forthe pres so that if type bar 36 is lifted by,

engagement with this bar will be ranged on the two members of the compound I bar that the uppermost type denotes the zero, while the lowest type denotes character 9. It now for instance the character zero in any of the denominations is to be brought in line with the platen, bar 36 is lift ed the first step and brought into the position indicated in dotted lines in Fig. 14. In this. instance the adding wheel connected with this bar shouldnotrevolve, because no item should be added to the total amount indicated by the wheels, by pressing the zero key in any of the denominations. For this purpose the teeth on member 2 of each bar 36 printthe character 0, the teeth 63 will still remain out of engagement with the adding wheel and assume the position indicated in dotted lines in Fig. 41 without moving the adding wheel.

The adding wheeZs. As describedabove,

number of teeth cerresponding with the num- -ber of types contained'on the cooperating compound bar, in this instance ten teeth corresponding with the characters O-9. Each adding wheel is of sufficient width to receive the corresponding character as an index on the faceof its teeth so that the operator by glancing on a certain transverse line over the whole row of teeth of thei'adding wheels may at any time read the sum viously added and printed, the tooth of each wheel on that line representing with its index a certain denomination. If new for instance the unit wheel of the adding wheels (the farthest wheel to the right Fig. 21) is about to complete one revolution, so that the tooth bearing the character zero appears essary to move the adding'wheel of the next higher denomination, that is the tens, one tooth in order to show on the reading line have been carried over and added to the units of the next higher order. In this particular instance the tensnvheel should be advanced line. The same operation should take place on the remaining adding wheels in case one of the next lower wheels is about to com lete one revolution; For this pur ose I ave provided the following means: Jach adding wheel, except the one of the highest denomination on the left hand side (Fig. 21) is pro vided with an abutment pin which ex- -l tends'acrossone half of the width of one tooth and is in a position relatively to the profile of I this tooth as indicated in Figs. 141 and 18.

. In front of the adding wheels toward the operator is mounted a bracket 71 in which is disposed .a shaft 72 which serves as a common pivot to agroup of carrydogs 73. These dogs correspond in number and are in line commence a suilicient' distance below the adding wheel,'so that if the bar is lifted to the adding Wheels 60 are provided with a.

. aa that ten units of the next lower order.

one tooth to bring its figure 9 into the readingof'all the items preagain on the operator's reading line, it IS nee- 77 on opposite sides.

3 ing nose 79 of the bar.

adding with the adding wheels bearing pins 70 above referred to, the end of eachcarry 'dogi'acing its adding wheel 70 of their wheel will engagethis end oneein each revolution in the manner indicated in Fig. 18. V T he other end of each carry dog 73 points downward and retains in its normal position a spring operated carry bar 74 of which one is provided for each carry dog. These bars'M comprise a longitudinal member disposed substantially in parallel with top plate 16 and resting thereon, and a downward extending member or detent' 75, extending through a slot in top plate 16 to i which detent the, tension spring 76 is las tened, tending to throw its bar 7' 1; toward its corresponding adding wheel 60.

A bail 77 is pivoted on shaft 72 and yieldingly pressed against the group of dogs73 by 2 means of torsion springs 78 fastened'at one the other end to bail In normal position as indicated in Fig. 13 each bar 74 is withdrawn and held in this position by its dog 73 engag- Each bar is disposed relatively to its dog and the adding wheels, so that the dog of the adding Wheel of one denomination retains the carry bar of the next higher denomination, and each carry bar is disposed so, that when it is released by its dog and thrown by its spring toward the wheel, it will engagea tooth of its adding wheel in its path with its nose 80 and by-the tension of spring 7 6 revolve its adding wheel one tooth. In order to prevent further'rotation of the adding wheel a stop 81 of suitable shape is provided near nose 80 which will bear against the, adding wheel'as end to shaft 72 and at hindicated in Fig. 19, so that further rotation of the adding wheel through this bar is prevented. A spring pressed retaining dog 82 is provided for each adding wheel in order to prevent its movement in the opposite direction at any time. The width of each carry bar 74 near its nose 80 is half of that of the adding wheel and its location relatively 'to the adding wheel which it operatesis so that it will clear the pin" 70 of this wheel as indicated-for instance in Fig. 2].) Owing to tension spring 7 6 being fastened near the nd of we alarm 75 of carry bar 7:4, this bar W: ways tilted u ward with its nose 80, so that .nose 79 will 0 early engage its dog 73.

Each bar 74- is longitudinally guided in a slot provided in the'lower part of bracket '70 aselearly shown in Fi 22. By releasing the bar in the manner above described, it will perform atilting motion when assuming the position indicated in Fig. 19. In order to provide sufiicient' space for this tilting of 74- it is slightly rearwardly beveled from its br-aring point on plate 16 as ma be seen from Fig. 18. The operation of the mechanisni just described is as follows: Assuming that/the adding wheel shown at U0 in Fig. 18

being disposed so that pin 1 represents the unit wheel which is located at the right hand 'end in Fig. 23, and that add; ing wheel 60 in Fig. 19 represents the tens wheel. If new the unit Wheel in Fig. 18

and show figure O on the reading line 0, a so that its pin 70 will strike dog 73 in linetherv with, this dog which retains thecarry bar for the tens wheel will release its bar which in turn will be thrown by its spring 76 toward the tens wheel and move the latter one tooth farther. The same operation will take 'olace relatively to Wheels indicating the renr higher denominations in case the wheel of the next lower denomination should be about to complete one revolution. In this manner the proper amount will be carried over from denomination. It is obvious that the adding wheel of the highest denomination does not require a carry dog or pin 70.

Zero return mechar m sm.'lf a certain number of items have been added it may be desired to return the addin wheels into the zero position to list and aild a new so. )1 items. For this purpose I have prov-.dfifl the following mechanism: As has been previouslystated, adding wheels 60 are disposed on a common shaft 61 which is journals d in bracket 40 within boss 41 serving as a pivot for hammer 10 as explained above. T is arrangement is clearly illustrated-in Fig. 24. As may be seen from this figure the dili'crent adding Wheels are held separated from each other by spacing walls 62 which are part of guide block 35, the end wheels being held at the proper distance from each brac) or in by spacing. rings 85. Shaft 61 which is illustrated in Figs. 27 and 29 in detail is provided with a number of annular grooves 86 corresponding in number with the number of adding wheels. grooves 86 are one half the width of the adding wheels 60. Each pin 70 of one of the adding wheels previously mentioned with reference to the carry. over mechanism ongages in one of the grooves so that it will run in this groove when the adding wheel is revolvcd (Figs. 2aand 2'8). h "ft 61 is further longitudinally slotted in h; manner indicated at 87 in Fig. 29. In the slotb? is slid ingly fitted a lill is 8-8 which fl ll'lllS partoi the shaft 89 in line with shaft 61 and jouinalcd at its free end in bracket 90 mountcd on the top plate of the machine. Knife 88 provided with notches 91 C()l'l'.S'; '20illllll;j in number and relative distance with the number and location of annular grooves 86 in shalt 63., so that if knife 88 is inserted in slot 87 of shaft- 61 a propm' depth, as indicated in Fig. 24, notches 91 will register. with the correand cimsequently pins 70 of adding, wheels 60 are still free to revolve unobstructed in their annular grooves.

should be about to completeonerevolution the lower denomination to the next higher As may be seen. from Fig. 24,

llf

spending annulargroorcs S6 of-shaft 61,

56 pins 70 of all the adding wheels, as is indinear bracket 90 is fixed t shaft 89 a collar' 93 provided with a boss 94 ad apted to engage in a recess 95 of bracket 90, as. indicated in Figs. .24 and 25. is disposed an expansion spring 95 tending to press the collar 93 against bracket 99, so that if at any time boss 94 should register with recoss 95 of bracket 90, the boss will be pressed by its spring into the recess 95 and shaft 89 being shifted then the farthest to the right will be prevented fromvrevolving. This is. the normal position of shaft .89indicated in; Fig. 24 in which as above described pins 70 .of adding wheels60 are free to revolve in knife 88 are then their grooves 86 with which recesses'91 of in line. A vertical section through one of the adding on. the line y Fig. 28. In

wheels in Fig. 24'is illustratedin this figureknife 88 may be clearly seen within shaft 61 and pin 70 within groove 86. A left hand end'view of knife 88 with shaft 89 illustrated in Fig. 26 in side view is shown in Fig. 30.

To the end of shaft 89 protruding beyond bracket 90 is fastened gear wheel 9.? which is in mesh with'gear wheel 98 mounted on a hand shaft 99 slidingly journaled in bracket 90. Shaft 99 is provided at the right hand end with knurled head 100-for operating this shaft by hand. Close to gear. wheel 98 is fastened to shaft 99 a disk 101 of sufficiently in its normahposition with boss 94, engaged in recess 95 b 40.

I should be-pushed to large diameter to partially overlap gear wheel 97 on shaft 89. As will be seen from-Fig. 24, gear wheels \97 and 98 are, when shaft 89 is t a distance from bracket 90 which'is substantially equal to the depth of recess 95. If now at any time hand shaft 99 the left, shaft 89 will be taken along by means of disk 101 and collar 93 will be disengaged from recess 95 as shown in Fig. 25, and shaft-89 can now be revolved .by turning knurled head 100. Bypushing shaft 89420 the left it will be notches/91 I seen that of'knife 88 will get outof alinement with grooves 86 of shaft 61, so that the cated with reference to twoadding wheels and their pins shown inFig. 25. If now knurled head 100 is turned, shafts 89 and 61 will revolve thereby picking up all the pins 70 in the path of knife 88, and-after one revo- 89 all pins 7 0 will be engaged mounted on shaft 89 a collar 92 abut- Between collars 92 and 93 upper edge of-knife 88 will be in the path'ofand surround moment boss 94 is thrust back intoits recess 95 by spring 96 after one' revolution of shaft 89, the tooth of each adding wheel bearing index 0 is on the operators reading line a-a. By thrusting boss 94 into its recess 95 the shaft is again locked and notches 9]. are. returned into line with grooves 86 of shaft 61 so that all the adding wheels 60' are again free to be revolved by their individual compound bars as the latter are operated Reset Zever.After the keys have been operated to indicate and printthe desired item, the machine must be reset into its normal position, that is to, say: all the type bars lifted to the proper height'to print the desired character must be returned into their normal position above referredto, hammer 10 must be withdrawn and reset for 'the -next stroke and all carry-bars which have been released during sthe carrv-over operation must be withdrawn from thbif adding wheels. In order to complete all these operations in as simple a'rnanner as possible forthe operator, I have providedreset lever 1110 WliiQliglS rocked by depressing reset key 111 arranged longitudinally in the middle at the lower end. of the key board of the machine asindicated in Fig. l. This lever is s own'in side elevation in its fuli'length in Fig. 3 and portions thereof are shown inlarger scale in side elevation ijnFigs. 13, 14 and 15, and in plan view in 'ig.31. L. a As illustrated in Figs. 1 and 3, lever 1110 is pivoted on top plate 16of-the machine in a' bracket 112. The end, of lever 110 near the ,rint-in mechanism is forkedas indicated in Figs. 1 and 31. Each prong of the fork extends laterally beyond the inner walls 17 and 18. To-each fork is'pivoted a link 113 and 114 respectively, link; 113 extending downward into the right hand outer-compartment and link 114 into the left hand outer' co npartment (seen in Fig. 1). Link 113 is shown in side elevation in Figs. 13 and 15 which illustrate the printing mechanism contained in the right hand outer coinpart-i ment. To link 113 is attached with a loose fit bellcrank 115 pivoted at 116 to wall 17.-

' A bell crank 117 correspondingly pivoted to wall 18 at 118, in the left hand outer compartrnent, is connected in a similar manner to link 1 14 of reset lever 110. The two other corresponding arms ofbell cranks 1'15 and 117 respectively are'connected to bail 119 which extends across the whole row of type bars at the right hand. end of the'machinc and 31.

The-- bail 119 is guided at both ends by means of guide pins 120 fastened to walls 17 125 and 18 respectively '(Figs. 31, 32 and 33) each of these pins being disposed in c slot 121- and 122 of bail 119 respectively. Thus it will be seen that if reset lever 110 is rocked, hail 119 will have a sliding motion toand' from the.

guideblock 35, Figs. 14, 15 

